Kudryavtsev Alexander, Smirnov Alexey
Department of Invertebrate Zoology, Faculty of Biology and Soil Science, St Petersburg State University, Universitetskaja nab, 7/9, St Petersburg, Russia.
Eur J Protistol. 2006 Mar;42(1):3-7. doi: 10.1016/j.ejop.2005.08.001. Epub 2005 Nov 11.
Cochliopodium gallicum n. sp., isolated from cyanobacterial mats in the Camargue (France) is the smallest marine species of Cochliopodium to date. Its unusual tectum consists of flat plate-shaped scales with honeycomb-like centres, underlain by a layer of filamentous structures connected to each other in the basal and apical parts. The tectum is very fine and can be easily lost under inappropriate EM fixation. In its light-microscopical features, this species resembles Ovalopodium carrikeri Sawyer, 1980, a himatismenid that is believed to possess a scaleless, fuzzy or hairy "glycocalyx". We suggest that O. carrikeri might have been a similar species that lost scales under fixation. Our finding makes desirable a re-investigation of the genus Ovalopodium.
新种法国旋口虫(Cochliopodium gallicum n. sp.),从法国卡马尔格的蓝藻席中分离得到,是迄今为止旋口虫属最小的海洋物种。其独特的顶盖由中心呈蜂窝状的平板状鳞片组成,在基部和顶端部分有一层相互连接的丝状结构作为支撑。顶盖非常精细,在不适当的电子显微镜固定条件下很容易丢失。在光学显微镜特征方面,该物种类似于1980年的卡里克里卵形虫(Ovalopodium carrikeri Sawyer),一种被认为具有无鳞片、模糊或多毛“糖萼”的希马蒂斯虫。我们认为卡里克里卵形虫可能是一个在固定过程中失去鳞片的类似物种。我们的发现使得对卵形虫属进行重新研究成为必要。